Not long after, I have the first capacitor out. For this build I have ordered my own caps, the Nichicon Muse KZ variety. They are of very comparable size, even with the higher voltage ratings.

Only a few minutes after starting, I am halfway done with the main board. Cruising along just fine!

Just the four small 10uF caps left now! Yipee!!

Mistake #3: I didn't order enough caps!!! BLAST.

I will go as far as I can, a balanced amp. I will come back to fix this as well. These caps will likely ride along with those destined for my BS4500.

An odd note here, those four caps are not all the same - allthough they should be. The capacitance is the same, yet the far left cap on the left channel had a significantly higher voltage. I wonder if B&O came up just one cap short when putting this 3000 together way back when and substituted 😂

Okay, this will end tonight's update. I have to again wait on more capacitors... Ugh. I don't think this time around will take as long. Be back soon!

Hey Evman,

"Why another excellent take by take in thread on your bm3000 going on here"

just a few questions bro... The far left cap on f lft channel where the voltage was higher but the capacitance the same as the others..,so its not necessary too replace? There was a photograph w/the I think 3 orig 50v caps w/one being replaced by the new 3300uf 63v & in your next photo of the same spot on the board there was what looked like plastic surrounding the 2 50v caps? just throw away stuff or some purpose?

Alrighty Then we're holding you to a shorter time on getting back Cowboy😕

Thank you! Hopefully it will resume fast enough - I want to hear it so badly!!!

No it still needs to be changed, the significance is shallow on that detail, just strange! 😂 It needs to be replaced, I just didn't order enough caps to fill its place! The plastic is bubble wrap used to stabilize the new smaller caps. The original, as pictured, are much larger and didn't require this cushion as they were held in place by a metal strap. Its a bad job on my part as I am better off using hot glue, but there wasn't any handy when I installed the new caps. When I return to this project I will correct both of these issues.

YeeHaawww!!!

Great Evan! At last!

One or two things you might want to consider...

First, the main reservoir cap. I too thought mine was okay at first. But the amps were not completely silent. When I stuck my ear to the speakers I could hear a faint buzz, which completely disappeared after replacement.

Then on one channel I had two bad 560 ohms resistors on each side of the trimmer; you might want to check on those too, and replace the trimmers as well!

Also replace all those 47k trimmers in the preamp section. On my BM 4400 (almost identical) I gained a lot of sound clarity after replacement!

Keep up the good work then!

Hey Evan,

"In any case would you mind doing a photo showing exactly what Chartz is suggesting?...especially the pre-amp section ot the 47k trimmers?

*Oh and thanks for answering my previous questions on the Caps & why the use of the bubble plastic*

chartz wrote:

Great Evan! At last!

One or two things you might want to consider...

First, the main reservoir cap. I too thought mine was okay at first. But the amps were not completely silent. When I stuck my ear to the speakers I could hear a faint buzz, which completely disappeared after replacement.

Then on one channel I had two bad 560 ohms resistors on each side of the trimmer; you might want to check on those too, and replace the trimmers as well!

Also replace all those 47k trimmers in the preamp section. On my BM 4400 (almost identical) I gained a lot of sound clarity after replacement!

Keep up the good work then!

Yes, progress at long last!!!

Since I am ordering another (large) set of caps, I was planning on tacking on a 4700uF or higher cap to replace that 5000uF. It will need one eventually.

The trimmers are in line for replacement, I just need to order those too. Boy do I need to condense these items! Let me tell you, I was freightened when I saw all those trimmers - so many!!!

I'm going to try and keep this project steady until the end!